<?PHP  // $Id: block.php,v 1.18.4.2 2008/04/02 06:09:57 dongsheng Exp $

// block.php - allows admin to edit all local configuration variables for a block

	require_once('../config.php');
	require_once($CFG->libdir.'/adminlib.php');
	require_once($CFG->libdir.'/blocklib.php');

	$blockid = required_param('block', PARAM_INT);

	if(!$blockrecord = blocks_get_record($blockid)) {
		error('This block does not exist');
	}

	admin_externalpage_setup('blocksetting'.$blockrecord->name);

	$block = block_instance($blockrecord->name);
	if($block === false) {
		error('Problem in instantiating block object');
	}

	// Define the data we're going to silently include in the instance config form here,
	// so we can strip them from the submitted data BEFORE handling it.
	$hiddendata = array(
		'block' => $blockid,
		'sesskey' => $USER->sesskey
	);

	/// If data submitted, then process and store.

	if ($config = data_submitted()) {

		if (!confirm_sesskey()) {
			 print_error('confirmsesskeybad', 'error');
		}
		if(!$block->has_config()) {
			error('This block does not support global configuration');
		}
		$remove = array_keys($hiddendata);
		foreach($remove as $item) {
			unset($config->$item);
		}
		$block->config_save($config);
		redirect("$CFG->wwwroot/$CFG->admin/blocks.php", get_string("changessaved"), 1);
		exit;
	}

	/// Otherwise print the form.

	$strmanageblocks = get_string('manageblocks');
	$strblockname = $block->get_title();

	admin_externalpage_print_header();

	print_heading($strblockname);

	print_simple_box(get_string('configwarning', 'admin'), 'center', '50%');
	echo '<br />';

	echo '<form method="post" action="block.php">';
	echo '<p>';
	foreach($hiddendata as $name => $val) {
		echo '<input type="hidden" name="'. $name .'" value="'. $val .'" />';
	}
	echo '</p>';
	$block->config_print();
	echo '</form>';
	print_footer();

?>
